diff --git a/quovadis/quovadis.php b/quovadis/quovadis.php
index 0c4a0a5ba240c4afad2a350746364770f1850068..9e727f48546dc4b9c43aa8a6146a8fd1fe07e3b1 100644
--- a/quovadis/quovadis.php
+++ b/quovadis/quovadis.php
@@ -163,6 +163,19 @@ Rough API usage is:
 curl -X POST -d username=accmurphy https://quovadis.ucc.asn.au/quovadis/register
 curl -X POST -d username=accmurphy -d api_key=foo -d new_api_key=bar https://quovadis.ucc.asn.au/quovadis/update-api-key
 curl -X POST -d username=accmurphy -d api_key=foo -d challenge=thingy -d value=123456abcdef https://quovadis.ucc.asn.au/quovadis/update-challenge
+
+This API can be used by a certbot hook script. 
+
+certbot certonly --server https://acme-v02.api.letsencrypt.org/directory \
+        --manual \
+	--preferred-challenges=dns \
+        --manual-auth-hook /etc/letsencrypt/ucc-hooks/certbot-hook-quovadis.sh \
+        -d thehostname.ucc.asn.au
+
+The hook script can be downloaded from:
+
+* https://gitlab.ucc.asn.au/UCC/quovadis/-/blob/master/scripts/certbot-hook-quovadis.sh
+* https://gitlab.ucc.asn.au/UCC/quovadis/-/blob/master/scripts/config.sh
 END;
 
     // In case any of our lines are larger than 70 characters, we should use wordwrap()
@@ -194,6 +207,35 @@ curl -X POST -d username=accmurphy https://quovadis.ucc.asn.au/quovadis/register
 curl -X POST -d username=accmurphy -d api_key=foo -d new_api_key=bar https://quovadis.ucc.asn.au/quovadis/update-api-key
 curl -X POST -d username=accmurphy -d api_key=foo -d challenge=thingy -d value=123456abcdef https://quovadis.ucc.asn.au/quovadis/update-challenge
 </pre>
+
+<p>
+This API can be used by a certbot hook script. 
+</p>
+
+<pre>
+certbot certonly --server https://acme-v02.api.letsencrypt.org/directory \
+        --manual \
+	--preferred-challenges=dns \
+        --manual-auth-hook /etc/letsencrypt/ucc-hooks/certbot-hook-quovadis.sh \
+        -d thehostname.ucc.asn.au
+</pre>
+
+<p>
+The hook script can be downloaded from:
+</p>
+
+<ul>
+<li>
+<a href="https://gitlab.ucc.asn.au/UCC/quovadis/-/blob/master/scripts/certbot-hook-quovadis.sh">
+https://gitlab.ucc.asn.au/UCC/quovadis/-/blob/master/scripts/certbot-hook-quovadis.sh
+</a>
+</li>
+<li>
+<a href="https://gitlab.ucc.asn.au/UCC/quovadis/-/blob/master/scripts/config.sh">
+https://gitlab.ucc.asn.au/UCC/quovadis/-/blob/master/scripts/config.sh
+</a>
+</li>
+</ul>
 END;
 
    $leaf->response()->markup($html);